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Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
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Related Experiment Video

Updated: Jul 11, 2026

Three-Dimensional Reconstruction of Orbital Fractures
08:18

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Published on: May 16, 2025

[Transitory vision loss by orbital osteoma].

M Monteiro1, S Borges, V Rosas

  • 1Service d'Ophtalmologie, Hôpital Universitaire San João, Oporto, Portugal. manuelmp@portugalmail.pt

Journal Francais D'Ophtalmologie
|September 20, 2007
PubMed
Summary

A 50-year-old woman experienced temporary vision loss due to an orbital osteoma. Surgical removal of the ethmoidal osteoma resolved her vision problems.

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Area of Science:

  • Ophthalmology
  • Neurosurgery
  • Radiology

Background:

  • Orbital osteomas are benign, slow-growing bone tumors that can cause visual disturbances.
  • Diagnosis can be challenging, often requiring advanced imaging techniques.

Observation:

  • A 50-year-old female presented with intermittent vision loss in her right eye, lasting six months.
  • Initial orbital ultrasound suggested an ethmoidal mucocele, but CT scans revealed a calcified orbital osteoma.
  • The patient had normal visual acuity, pupillary response, and visual field tests.

Findings:

  • A 2.7 cm x 2.2 cm orbital osteoma was diagnosed via computed tomography and confirmed with X-ray.
  • Surgical excision was performed using an anterior medial orbitotomy approach.
  • Histopathology confirmed the mass as a compact osteoma.

Implications:

  • Surgical intervention for orbital osteomas is effective in resolving associated visual symptoms.
  • Accurate diagnosis relies on a combination of imaging modalities, with CT being crucial.
  • This case highlights the importance of considering osteomas in the differential diagnosis of orbital masses causing visual impairment.